whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String userId,
    2. String? displayName,
    3. String domainId,
    4. String domainName,
    5. int topicCount,
    6. double avgMasteryScore,
    7. int topicsAtMastery,
    8. DateTime? lastActive,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String userId,  String? displayName,  String domainId,  String domainName,  int topicCount,  double avgMasteryScore,  int topicsAtMastery,  DateTime? lastActive)?  $default,) {final _that = this;
switch (_that) {
case _TeamProgressEntryModel() when $default != null:
return $default(_that.userId,_that.displayName,_that.domainId,_that.domainName,_that.topicCount,_that.avgMasteryScore,_that.topicsAtMastery,_that.lastActive);case _:
  return null;

}
}